Puls Ups Supply 10a

7/24/2019 Puls Ups Supply 10a

1/21

UB10.242USeries 24V, 10A, DC-UPS

DC-UPSCONTROL UNIT Requires Only One 12V Battery for a 24V Output

Allows Batteries Between 17Ah and 130Ah

Battery Charging with Temperature Tracking

Stable Output Voltage in Buffer Mode

Superior Battery Management for Longest Battery Life

Comprehensive Diagnostic and Monitoring Functions

Replace Battery Signal Included

Electronically Overload and Short Circuit Protected

50% Power Reserves

3 Year Warranty

1. GENERAL DESCRIPTION 2. SHORT-FORM DATAInput voltage nom. 24Vdc

range 22.5-30Vdc

Output current min.15A Normal mode

min. 10A Buffer mode

Output voltage typ. 0.23V loweras input voltage

Normal mode

22.25V Buffer mode, 10A

Allowed batteries 17Ah to 130Ah VRLA lead acid

Temperature range -25 to +50CDimensions 49x124x117mm WxHxD

Buffer time (at 10A) typ. 55 minutes 26Ah battery

typ. 4 hours 100Ah battery

This uninterruptible power supply (UPS) controllerUB10.242 is an addition to standard 24V powersupplies to bridge power failures of remote oremergency systems which must be kept fully inoperation for e.g. 72 hours.

The DC-UPS includes an internal temperature sensorand a professional battery management systemwhich charges and monitors the battery to achievethe longest battery service life as well as many

diagnostic functions that ensure a reliable operationof the entire system.

A unique feature of the UB10 Series is that only one12V battery is required to buffer the 24V output.This makes matching batteries unnecessary andallows a precise battery charging and testing.

UB10.241

UB10.245

UBC10.241

UB10.242

battery

included

UB10-Series

Related products

larger

battery sizes

additional

12V output

Typical setup of a DC-UPS system:

24VPowerSupply

12VBattery

UB10

24VDC-UPS

e.g.:UZK12.xxx

24VLoad

AC

e.g.:Dimension

DC

e.g.: PLC

3. ORDER NUMBERS 4. MARKINGSDC-UPS UB10.242 Controller

Accessories UZK12.261 Battery module 12V 26Ah

UZO12.26 Mounting kit w/o battery

IND. CONT. EQ.UL 508 UL 60950-1 EMC, LVD

ZM1.WALL Panel/Wall mount bracket

Oct. 2009 / Rev. 1.0 DS-UB10.242-ENAll parameters are specified at an input voltage of 24V, 10A output load, 25C ambient and after a 5 minutes run-in timeunless otherwise noted. It is assumed that the input power source can deliver a sufficient output current.

www.pulspower.com Phone +49 89 9278 0 Germany1/21


2/21




INDEX PAGE INDEX PAGE1. General Description ............................................12. Short-form Data ............................................... ...13. Order Numbers....................................................14. Markings..............................................................1 5. Input ............................................. .......................36. Output in Normal Mode.....................................47. Output in Buffer Mode.......................................58. Battery Input ................................................... ....69. Buffer Time..........................................................710. Efficiency and Power Losses................................811. Functional Diagram.............................................8

12.

Check Wiring and Battery Quality Tests.............9

13.

End-of-Charge Voltage .......................................9

14. Relay Contacts and Inhibit Input.................... ..1015. Front Side User Elements ..................................1116. Terminals and Wiring........................................12

17. Reliability ..................................................... ..... 1218. EMC................................................. .................. 1319. Environment ..................................................... 1420. Protection Features .......................................... 1421. Safety ................................................................ 1522. Approvals.......................................................... 1523. Fulfilled Standards............................................ 1524. Used Substances ............................................... 1625. Physical Dimensions and Weight ..................... 1626. Installation Notes ............................................. 1727. Accessories................................................... ..... 18

28.

Application Notes.......... ................................... 19

28.1.

Battery Replacement Intervals............... 19

28.2. Parallel and Serial Use........................ .... 2028.3. Using the Inhibit Input........................... 2128.4. Troubleshooting........................ ............. 21

INTENDED USEThe unit shall only be installed and put into operation by qualified personnel.

This unit is designed for installation in an enclosure and is intended for general use, such as in industrial control,office, communication, and instrumentation equipment. Do not use this device in aircraft, trains and nuclearequipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life.

TERMINOLOGY AND ABREVIATIONSDC-UPS Uninterruptible power supply with DC-Input.

Normal mode Describes a condition where the battery is charged, the input voltage is in range and the output isloaded within the allowed limits.

Buffer mode Describes a condition where the input voltage is below the transfer threshold level, the unit isrunning on battery (buffering) and the output is loaded within the allowed limits.

Charging mode Describes a condition where the battery is being charged, the input voltage is in range and theoutput is loaded within the allowed limits.

Inhibit mode Describes a condition where buffering is disabled on purpose by using the inhibit input of the DC-

UPS. (e.g. for service actions, or to save battery capacity)Buffer time Same as the term hold-up time.

T.b.d. To be defined, value or description will follow later.

DISCLAIMERThe information presented in this document is believed to be accurate and reliable and may change without notice.

Some parts of this unit are patent by PULS (US patent No 091662,063, Des. 424,529, ).

No part of this document may be reproduced or utilized in any form without permission in writing from the publisher.


3/21


5.

INPUTInput voltage nom. DC 24V

Input voltage ranges nom. 22.5 to 30Vdc Continuous operation, see Fig. 5-1

30 to 35Vdc Temporarily allowed, no damage to the DC-UPS *)

35Vdc Absolute maximum input voltage with no damage to theDC-UPS

0 to 22.5Vdc The DC-UPS switches into buffer mode and deliversoutput voltage from the battery if the input was abovethe turn-on level before and all other buffer conditionsare fulfilled.

Allowed input voltage ripple max. 1.5Vpp Bandwidth


4/21


6.

OUTPUT IN NORMAL MODE

Output voltage in normal mode nom. DC 24V The output voltage follows the input voltage reduced bythe input to output voltage drop.

Voltage drop between input andoutput

max. 0.3V At 10A output current, see Fig. 6-1for typical values

max. 0.45V At 15A output current, see Fig. 6-1for typical values

Ripple and noise voltage max. 20mVpp 20Hz to 20MHz, 50Ohm *)

Output current nom. 15A Continuously allowed

Output power nom. 360W Continuously allowed

Short-circuit current min. 17.9A Load impedance 100mOhm, see Fig. 6-2for typical values

max. 21A Load impedance 100mOhm, see Fig. 6-2for typical valuesCapacitive and inductive loads No limitation

*) This figure shows the ripple and noise voltage which is generated by the DC-UPS. The ripple and noise voltagemight be higher if the supplying source has a higher ripple and noise voltage.

Fig. 6-1 Input to output voltage drop, typ. Fig. 6-2 Output voltage vs. output current innormal mode at 24V input, typ.

Input to OutputVoltage drop

0

0 2 10

0.1

0.15

0.25

18A

0.05

0.2

0.3

0.35

0.4V

Output Current

4 6 8 12 14 16

Output Voltage

0

0 5 10 15 20

4

812

28V

16

20

24

25A

Output Current




5/21


7.

OUTPUT IN BUFFER MODEIf the input voltage falls below a certain value (transfer threshold level), the DC-UPS starts buffering without anyinterruption or voltage dips. Buffering is possible even if the battery is not fully charged.

Output voltage in buffer mode nom. DC 24V Output voltage is stabilized and independent frombattery voltage

22.45V 1%, at no load,

22.25V 1%, at 10A output current

Transfer threshold for buffering typ. 80mV higher than the output voltage in buffer mode

Ripple and noise voltage max. 20mVpp 20Hz to 20MHz, 50Ohm

Output current nom. 10A Continuously allowed

15A < 5s with full output voltage *)

Short-circuit current min. 17.9A Load impedance 100mOhm **)

max. 21A Load impedance 100mOhm **)

*) If the output current is in the range between 10A and 15A for longer than 5s, a hardware controlled reduction of themaximal output current to 10A occurs. If the 10A are not sufficient to maintain the 24V, buffering stops after another 5s. Thebuffering is possible again as soon as the input voltage recovers.

**) If the nominal output voltage cannot be maintained in buffer mode, the DC-UPS switches off after 5s to save batterycapacity.

Fig. 7-1 Buffering transition, definitions Fig. 7-2 Transfer behavior, typ.

Buffer mode

Outputvoltage

24V28VInput

voltage

t

t

Transfer

threshold

500ms/DIV

0V

OutputVoltage

Input Voltage

24V22.25V at 10A

24V

Fig. 7-3 Available output current in buffermode

Fig. 7-4 Output voltage vs. output current inbuffer mode, typ.

Output Current

0

0 5 Sec.

15A

10A

Time

5A

BonusPower

Output Voltage

A

B

C

Continuously availableAvailable for 5s then auto switching to curve

Buffering will stop after 5s

D

00 5 10 15 20

5

10

15

25V

20

25A

OutputCurrent

A B

CD

D

Buffering will stop after 5s




6/21


8.

BATTERY INPUTThe DC-UPS requires one 12V VRLA battery to buffer the 24V output.

Battery voltage nom. DC 12V Use one maintenance-free 12V VRLA lead acid battery orone battery module which is listed in the chapteraccessories.

Battery voltage range 9.0 15.0V Continuously allowed, except deep discharge protection

max. 35Vdc Absolute maximum voltage with no damage to the unit

typ. 7.4V Above this voltage level battery charging is possible

Allowed battery sizes min. 17Ah

max. 130Ah

Internal battery resistance max. 100mOhm See individual battery datasheets for this valueBattery charging method CC-CV Constant current, constant voltage mode

Battery charging current (CC-mode) nom. 3.0A Independent from battery size,

max. 3.4A

End-of-charge-voltage (CV-mode) 13.0-14.4V See chapter 15

Battery charging time typ. 9h *) For a 26Ah battery

typ. 34h *) For a 100Ah battery

Battery discharging current **) typ. 21A Buffer mode, 10A output current, 11.5V on the batteryterminal of the DC-UPS, see Fig. 8-1for other parameters

typ. 0.3A Buffer mode, 0A output current

max. 50A At no input, buffering had switched off, all LEDs are off

typ. 270mA At no input, buffering had switched off, yellow LED

shows buffer time expired (max. 15 minutes)Deep discharge protection ***) typ. 10.5V At 0A output current

typ. 9.8V At 10A output current

*) The charging time depends on the duration and load current of the last buffer event. The numbers in the table represent afully discharged battery.

**) The current between the battery and the DC-UPS is more than twice the output current. This is caused by boosting the 12Vbattery voltage to a 24V level.This high current requires large wire gauges and short cable length for the longest possiblebuffer time. The higher the resistance of the connection between the battery and the DC-UPS, the lower the voltage on thebattery terminals which increases the discharging current. See also chapter 26for more installation instructions.

***) To ensure longest battery lifetime, the DC-UPS has a battery deep discharge protection feature included. The DC-UPS stopsbuffering when the voltage on the battery terminals of the DC-UPS falls below a certain value. The yellow LED will showbuffer time expired for a period of 15 minutes after the unit stopped buffering.

Fig. 8-1 Battery discharging current

vs. output current, typ.

Battery Current

0

0

10

20

5

15

25

30A

2.5 7.5 10 15A12.55

Output Current

Voltage onbattery terminalof the DC-UPS:A: 10.5VB: 11VC: 12V

A B C




7/21


9.

BUFFER TIME

The buffer time depends on the capacity and performance of the battery as well as the load current. The diagrambelow shows the typical buffer times of the standard battery modules.

Buffer time with 26Ah battery (UZK12.261) min. 9930 At 5A output current *)

min. 39 At 10A output current *)

typ. 130 At 5A output current, see Fig. 9-1**)

typ. 55 At 10A output current, see Fig. 9-1**)

Buffer time with 100Ah battery min. 62h 20 At 0.5A output current *)

min. 3h At 10A output current *)

typ. 82h 20 At 0.5A output current, see Fig. 9-1**)typ. 4h At 10A output current, see Fig. 9-1**)

*) Minimum value includes 20% aging of the battery and a cable length of 1.5m with a cross section of 2.5mm2between the

battery and the DC-UPS and requires a fully charged (min. 24h) battery.

**) Typical value includes 10% aging of the battery and a cable length of 0.3m with a cross section of 2.5mm2between the battery

and the DC-UPS and requires a fully charged (min. 24h) battery.

Fig. 9-1 Buffer time vs. output current with a 65Ah and a 100Ah battery

Buffer Current

0

40 50

0.5

1.0

1.5

2A

70 8060 90h30

A

B

A: 65Ah BatteryB: 100Ah Battery

Buffer Time (Hours)

30h

Buffer Current

0

5

2

4

6

8

10A

10 15 20 25

Buffer Time (Hours)

A

B

A: 65Ah BatteryB: 100Ah Battery

5

The battery capacity is usually specified in amp-hours (Ah) for a 20h discharging event. The battery discharge is non-linear (due to the battery chemistry). The higher the discharging current, the lower the appropriable battery capacity.The magnitude of the reduction depends on the discharging current as well as on the type of battery. High currentbattery types can have up to 50% longer buffer times compared to regular batteries when batteries will bedischarged in less than 1 hour.

High discharging currents do not necessarily mean high power losses as the appropriable battery capacity is reducedwith such currents. When the battery begins to recharge after a discharging event, the process is completed muchfaster since only the energy which was taken out of the battery needs to be refilled.

For this reason, the buffer time cannot be calculated using the Ah capacity value. The equation I x t = capacity inAh generally leads to incorrect results when the discharging current is higher than C20 (discharging current for 20h).




8/21


10.

EFFICIENCY AND POWER LOSSESEfficiency typ. 97.8% Normal mode, 10A output current, battery fully charged

Power losses typ. 2.9W Normal mode, 0A output current, battery fully charged

typ. 5.5W Normal mode, 10A output current, battery fully charged

typ. 7.2W During battery charging, 0A output current

typ. 18.5W Buffer mode, 10A output current

Fig. 10-1 Efficiency at 24V, typ. Fig. 10-2 Losses at 24V, typ.

Efficiency vs. outputcurrent in normal mode

94.5

3 9

95.5

96.0

97.0

15A

95.0

96.5

97.5

98%

Output Current

5 7 11 13

Power losses versus output current

0

0 7.5

6

12

15A

3

9

15

18W

Output Current

2.5 5 10 12.5

A

B

A: Buffer Mode

B: Charging ModeC: Normal Mode

C

11.FUNCTIONAL DIAGRAM

Fig. 11-1 Functional diagram

-

+

-

+

DC- UPS

24VPowerSupply

Step-upConverter

BatteryCharger

ElectronicCurrentLimiter

Battery

Tester

+

-

12V Battery+

-

BufferedLoad

Cut-offRelay

Input Output

Battery

Diagnosis LED (yellow)

Status LED(green)

Inhibit +

Controller

Check Wiring LED (red)

Replace Battery

BufferingContact

Ready Contact

Battery Temperature

(7)

Inhibit -(8)

(1)

(2)

(3)

(4)

(5)

(6)

Input Fuse&

ReversePolarity

Protection

*

Temp.

*) Return current protection; This feature utilizes a Mosfet instead of a diode in order to minimize the voltage drop and powerlosses.




9/21


12.

CHECK WIRING AND BATTERY QUALITY TESTS

The DC-UPS is equipped with an automatic Check Wiring and Battery Quality test.

Check Wiring test:Under normal circumstances, an incorrect or bad connection from the battery to the DC-UPS or a missing (or blown)battery fuse would not be recognized by the UPS when operating in normal mode. Only when back up is requiredwould the unit not be able to buffer. Therefore, a check wiring test is included in the DC-UPS. This connection istested every 10 seconds by loading the battery and analyzing the response from the battery. If the resistance is toohigh, or the battery voltage is not in range, the unit displays Check Wiring with the red LED. At the same time thegreen Ready LED will turn off.

Battery Quality or State of Health (SoH) test:

The battery has a limited service life and needs to be replaced in a fixed interval which is defined by the specifiedservice life (acc. to the Eurobat guideline), based on the surrounding temperature and the number ofcharging/discharging cycles. If the battery is used longer than the specified service life, the battery capacity willdegrade. Details can be found in chapter 28.1. The battery quality test can not determine a gradual loss in capacity.However, it can detect a battery failure within the specified service life of the battery. Therefore a battery quality testis included in the DC-UPS.

A battery problem is indicated with the yellow LED (replace battery pattern) and the relay contact Replace Battery.Please note that it can take up to 170 hours (with the largest size of battery) until a battery problem is reported. Thisshould avoid nuisance error messages as any urgent battery problems will be reported by the Check Wiring testand create a warning signal.

When Replace battery is indicated, it is recommended to replace battery as soon as possible.

13.END-OF-CHARGE VOLTAGE

The end-of-charge voltage depends on the temperature of the battery. A too high end-of-charge voltage candamage the battery and shorten its lifetime. Therefore, the DC-UPS has an internal temperature sensor included,which regulates the end-of-charge voltage depending of the battery temperature. To achieve the longest lifetime,the battery should be placed at a coldest location.

The temperature difference between the DC-UPS and the battery requires a correction of the end-of-charge voltage.This can be done with the selector on the front side of the unit. For details see chapter 15.




10/21


14.

RELAY CONTACTS AND INHIBIT INPUTThe DC-UPS is equipped with relay contacts and signal inputs for remote monitoring and controlling of the unit.

Relay contacts:

Ready: Contact is closed when battery is charged more than 85%, no wiring failure is recognized, inputvoltage is sufficient and inhibit signal is not active.

Buffering: Contact is closed when unit is buffering.

Replace Battery: Contact is closed when the unit is powered from the input and the battery quality test (SOH test)reports a negative result.

Relay contact ratings max 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A resistive load

min 1mA at 5Vdc min.Isolation voltage max 500Vac, signal port to power port

Signal input:

Inhibit: The inhibit input disables buffering. In normal mode, a static signal isrequired. In buffer mode, a pulse with a minimum length of 250ms isrequired to stop buffering. The inhibit is stored and can be reset bycycling the input voltage. See also section 28.3for application hints.

7+

5.1V

3mA

Inhibit

8-

Signal voltage max. 35Vdc

Signal current max. 6mA, current limited

Inhibit threshold min. 6Vdc, buffering is disabled above this threshold level

max. 10Vdc

Isolation nom. 500Vac, signal port to power port




11/21


15.

FRONT SIDE USER ELEMENTSA Power Port

Quick-connect spring-clamp terminals, connection for input voltage,output voltage and battery

B Signal PortPlug connector with screw terminals, inserted from the bottom.Connections for the Ready, Buffering, Replace Battery relay contacts andfor the Inhibit input. See details in chapter 14.

C Green Status LEDReady: Battery is charged > 85%, no wiring failure is recognized, inputvoltage is sufficient and inhibit signal is not active.Charging:Battery is charging and the battery capacity is below 85%.

Buffering:Unit is in buffer mode.Flashing pattern of the green status LED:

Ready10

10

Charging

10

Buffering

D Yellow Diagnosis LED

Overload: Output has switched off due to long overload in buffer modeor due to high temperatures.

Replace battery: Indicates a battery which failed the battery quality test

(SoH test). Battery should be replaced soon.Inhibit active: Indicates that buffering is disabled due to an active inhibitsignal.

Flashing pattern of the yellow diagnosis LED:

10

Overload

10

ReplaceBattery

10

Inhibitactive

E Red Check Wiring LEDThis LED indicates a failure in the installation (e.g. too low input voltage), wiring, battery or battery fuse.

F Battery Temperature Selector

A: Same than this unit Temperature compensated end-of-charge voltage

B: 10C lower than this unit Temperature compensated end-of-charge voltage with an offsetconditional upon the temperature

C: 20C lower than this unit Temperature compensated end-of-charge voltage with an offsetconditional upon the temperature

D: Battery temperature is 30C Fixed end of charge voltage for 30C battery temperature

E: Battery temperature is 20C Fixed end of charge voltage for 20C battery temperature

F: Battery temperature is 10C Fixed end of charge voltage for 10C battery temperature




12/21


16.

TERMINALS AND WIRINGPower terminals Signal terminals

Type Bi-stable, quick-connect spring-clamp terminals. IP20 Finger-touch-proof. Suitable for field-and factory installation. Shippedin open position.

Plug connector with screw terminal. Finger-touch-proofconstruction with captive screws for 3.5mm slottedscrewdriver. Suitable for field- and factory installation.Shipped in open position. To meet GL requirements,unused terminal compartments should be closed.

Solid wire 0.5-6mm2 0.2-1.5mm

2

Stranded wire 0.5-4mm2 0.2-1.5mm

2

AWG 20-10AWG 22-14AWG

Ferrules Allowed, but not required Allowed, but not required

Pull-out force 10AWG:80N, 12AWG:60N,14AWG:50N, 16AWG:40Naccording to UL486E

Not applicable

Tightening torque Not applicable 0.4Nm, 3.5lb.in

Wire stripping length 10mm / 0.4inch 6mm / 0.24inch

Fig. 16-1 Spring-clamp terminals, connecting a wire

Insert wire Close the lever

To disconnect wire reverse the procedure

Instructions:

a) Use appropriate copper cables, that are designedfor an operating temperature of 60C

b) Follow national installation codes and regulations!

c) Ensure that all strands of a stranded wire enter the

terminal connection!d) Up to two stranded wires with the same cross

section are permitted in one connection point

17.RELIABILITY

Lifetime expectancy min. 137 400h At 10A output current, 40C

min. > 15 years At 5A output current, 40C

min. > 15 years At 10A output current, 25C

MTBF SN 29500, IEC 61709 886 000h At 10A output current, 40C

1 482 000h At 10A output current, 25CMTBF MIL HDBK 217F 397 900 At 10A output current , 40C, ground benign GB40

545 000 At 10A output current , 25C, ground benign GB25

The Lifetime expectancyshown in the table indicates the operating hours (service life) and is determined by thelifetime expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours.Lifetime expectancy is calculated according to the capacitors manufacturer specification. The prediction model allowsa calculation of up to 15 years from date of shipment.

MTBFstands for Mean Time Between Failure, which is calculated according to statistical device failures and indicatesreliability of a device. It is the statistical representation of the likelihood of a unit to fail and does not necessarilyrepresent the life of a product.




13/21


18.

EMCThe unit is suitable for applications in industrial environment as well as in residential, commercial and light industryenvironment without any restrictions. The CE mark indicates conformance with EMC guideline 89/336/EC, 93/68/ECand2004/108/EC and the low-voltage directive (LVD) 73/23/EC, 93/68/EC and 2006/95/EC.

A detailed EMC Report is available on request.

EMC Immunity EN 61000-6-1, EN 61000-6-2 Generic standards

Electrostatic discharge EN 61000-4-2 Contact dischargeAir discharge

8kV15kV

Criterion A*)Criterion A *)

Electromagnetic RF field EN 61000-4-3 80MHz-2.7GHz 10V/m Criterion A

Fast transients (Burst) EN 61000-4-4 Out- and input lines 2kV Criterion A

Signal lines **) 2kV Criterion A

Surge voltage EN 61000-4-5 Output + -Input + -+ / - housing

500V500V500V

Criterion ACriterion ACriterion A

Conducted disturbance EN 61000-4-6 0,15-80MHz 10V Criterion A

*) DIN-Rail earthed**) Tested with coupling clamp

EMC Emission EN 61000-6-3, EN 61000-6-4 Generic standards

Conducted emission EN 55022 Input lines Class B *)

EN 55022 Output lines Class B *)

Radiated emission EN 55011, EN 55022 Class BThis device complies with FCC Part 15 rules.

Operation is subjected to the following two conditions: (1) this device may not cause harmful interference, and (2) thisdevice must accept any interference received, including interference that may cause undesired operation.

*) Informative measurement with voltage probe

Switching frequencies The DC-UPS has three converters with three differentswitching frequencies included.

Switching frequency of boost converter 100kHz Constant frequency

Switching frequency of electronic output current limitation 78kHz Constant frequency

Switching frequency of battery charger 19.5kHz Constant frequency




14/21


19.

ENVIRONMENTOperational temperature -25C to +50C Full power, for the DC-UPS control unit.

Keep battery in a cooler environment!

Storage temperature -40 to +85C Storage and transportation, except battery

Humidity 5 to 95% r.H. IEC 60068-2-30Do not energize while condensation is present

Vibration sinusoidal 2-17.8Hz: 1.6mm; 17.8-500Hz: 2g IEC 60068-2-6

Shock 30g 6ms, 20g 11ms IEC 60068-2-27

Altitude 0 to 6000m Approvals apply only up to 2000m

Over-voltage category III EN 50178

II EN 50178 above 2000m altitude

Degree of pollution 2 EN 50178, not conductive

Fig. 19-1 Output current vs. ambient temperature Fig. 19-2 Output current vs. ambient temperature

Allowable Output Current in Normal Mode

0-25 0 20 30 50C

2.5

5

7.5

10

12.5

15A

4010

Ambient Temperature

Allowable Output Current in Buffer Mode

0-25 0 20 30 50C

2.5

5

7.5

10

12.5

15A

10 40

Ambient Temperature

continuous

for typ. 5s

The ambient temperature is defined 2cm below the unit.

20.PROTECTION FEATURES

Output protection Electronically protected against overload, no-load and short-circuits

Output over-voltage protectionin buffer mode

typ. 32Vdcmax. 35Vdc

In case of an internal defect, a redundant circuitrylimits the maximum output voltage. The outputautomatically shuts-down and makes restart attempts.

Degree of protection IP20 EN/IEC 60529Penetration protection > 3.5mm E.g. screws, small parts

Reverse battery polarity protection yes Max. 35Vdc;

Wrong battery voltage protection yes Max. +35Vdc (e.g. 24V battery instead of 12V battery)

Battery deep discharge protection yes The limit is battery current dependent

Over temperature protection yes Output shut-down with automatic restart

Input over-voltage protection yes Max. 35Vdc, no harm or defect of the unit

Internal input fuse 25A, blade type No user accessible part, no service part




15/21


21.

SAFETY

Output voltage SELV IEC/EN 60950-1

PELV EN 60204-1, EN 50178, IEC 60364-4-41

Max. allowed voltage between any input, output or signal pin and ground:60Vdc or 42.4Vac

Class of protection III PE (Protective Earth) connection is not required

Isolation resistance > 5MOhm Power port to housing, 500Vdc

Dielectric strength 500Vac Power port to signal port

500Vac Power port / signal port to housing

Touch current (leakage current) The leakage current which is produced by the DC-UPS itself depends on the inputvoltage ripple and need to be investigated in the final application.

For a smooth DC input voltage, the produced leakage current is less than 100A.

22.APPROVALS

UL 508

IND. CONT. EQ.

18WM

LISTED E198865 listed for use in U.S.A. (UL 508) andCanada (C22.2 No. 14-95)Industrial Control Equipment

UL 60950-1 RECOGNIZED E137006 recognized for the use inU.S.A. (UL 60950-1) and Canada (C22.2 No. 60950)Information Technology Equipment, Level 5

IEC 60950-1IECEE

CB SCHEME

CB Scheme,Information Technology Equipment

23.FULFILLED STANDARDS

EN/IEC 60204-1 Safety of Electrical Equipment of Machines

EN/IEC 61131-2 Programmable Controllers

EN 50178, IEC 62103 Electronic Equipment in Power Installations




16/21


24.

USED SUBSTANCES

The unit does not release any silicone and is suitable for the use in paint shops.

Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.

Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.

The materials used in our production process do not include the following toxic chemicals:Polychlorinated Biphenyl (PCB), Pentachlorophenol (PCP), Polychlorinated naphthalene (PCN), PolybrominatedBiphenyl (PBB), Polybrominated Biphenyl Oxide (PBO), Polybrominated Diphenyl Ether (PBDE), PolychlorinatedDiphenyl Ether (PCDE), Polybrominated Diphenyl Oxide (PBDO), Cadmium, Asbestos, Mercury, Silica

25.

PHYSICAL DIMENSIONS AND WEIGHT

Width 49mm / 1.93

Height 124mm / 4.88 Plus height of signal connector plug

Depth 117mm / 4.61 Plus depth of DIN-rail

Weight 545g / 1.2lb

DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.The DIN-rail height must be added to the depth (117mm) to calculate the total required installationdepth.

Electronic files with mechanical data can be downloaded at www.pulspower.com

Fig. 25-1 Side view Fig. 25-2 Front view




17/21


26.

INSTALLATION NOTES

Mounting:The power terminal shall be located on top of the unit. An appropriate electrical and fire end-product enclosureshould be considered in the end use application.

Cooling: Convection cooled, no forced air cooling required. Do not obstruct air flow!

Installation clearances: 40mm on top, 20mm on the bottom, 5mm on the left and right side are recommendedwhen loaded permanently with more than 5A.Do not place heat sources next to the UB10.242 since it can influence the function of the internal temperature sensor.Keep a minimum of 15mm to the adjacent device.

Risk of electrical shock, fire, personal injury or death!

Turn power off and disconnect battery fuse before working on the DC-UPS. Protect against inadvertent re-powering.Make sure the wiring is correct by following all local and national codes. Do not open, modify or repair the unit.Use caution to prevent any foreign objects from entering into the housing.Do not use in wet locations or in areas where moisture or condensation can be expected.

Service parts:

The unit does not contain any service parts. The tripping of an internal fuse is caused by an internal fault. If damageor malfunctioning should occur during operation, immediately turn power off and send unit to the factory forinspection!

Wiring and installation instructions:

(1) Connect the power supply to the input terminals of the DC-UPS.

(2) Connect the battery to the battery terminals of the DC-UPS. Do not install the battery in airtight housings orcabinets. The battery should be installed according to EN50272-2, which includes sufficient ventilation. Batteriesstore energy and need to be protected against energy hazards. Use a 30A battery fuse typ ATO

257 030

(Littelfuse) or similar in the battery path. The battery fuse protects the wires between the battery and the DC-UPS. It also allows the disconnection of the battery from the DC-UPS which is recommended when working onthe battery or DC-UPS. Disconnect battery fuse before connecting the battery.

Please note: Too small or too long wires between the DC-UPS and the battery can shorten the buffer time or canresult in a malfunction of the DC-UPS. Do not use wires smaller than 2.5mm

2(or 12AWG) and not longer than

2x1.5m (cord length 1.5m). Avoid voltage drops on this connection.

(3) Connect the buffered load to the output terminals of the DC-UPS. The output is decoupled from the inputallowing load circuits to be easily split into buffered and non buffered sections. Noncritical loads can beconnected directly to the power supply and will not be buffered. The energy of the battery can then be used inthe circuits which requires buffering.

(4) Install the fuse when the wiring is finished.

Fig. 26-1 Typical wiring diagram

24VPowerSupply

+ -

N L PE

DC-UPSUB10.242

24V

IN

24V

OUT12V

BAT

+- +- +-12V

BatteryModule

+-

BufferedLoad

+ -Non-

bufferedLoad

+ -

24Vbufferedbranches

24VNon-bufferdbranches




18/21


27.

ACCESSORIES

Battery Modules

One pre-assembled battery module with a single 12V battery is available. As an option, the mounting bracket is alsoavailable without battery. This option offers more flexibility in selecting an appropriate battery or can save shippingand logistic costs. See individual datasheet for detailed information.

UZK12.261

Battery type High current version12V, 26Ah VRLA lead-acid maintenance free battery

Service life 10 to 12years According to EUROBAT guideline

Dimensions 214x179x158mm Width x height x depth

Weight 9.9kg

DIN-Rail mountable no

Order number UZK12.261 Battery module

UZO12.26 Mounting bracket without battery

UZB12.261 Replacement battery only

Fig. 27-1 UZK12.261

ZM1.WALL Wall / Panel mounting bracket

This bracket is used to mount the DC-UPS units onto a flat surface without utilizing a DIN-Rail. The two aluminumbrackets and the black plastic slider of the DC-UPS have to be removed so that the two surface brackets can bemounted.

Fig. 27-2 ZM1.WALL Wall / Panel Mounting Bracket Fig. 27-3 Assembled Wall / Panel Mounting Bracket




19/21


28.

APPLICATION NOTES

28.1. BATTERY REPLACEMENT INTERVALS

Batteries have a limited life time. They degrade slowly beginning from the production and need to be replacedperiodically. The design life figures can be found in the individual datasheets of the batteries and usually is specifiedaccording to the Eurobat guideline or according to the manufacturers specifications.

The design life is the estimated life based on laboratory condition, and is quoted at 20C using the manufacturersrecommended float voltage condition. According to the Eurobat guideline, design lives have been structured into thefollowing different groups:

3 - 5 years: This group of batteries is very popular in standby applications and in small emergency equipment.

This represents a 4 years design life with a production tolerance of 1 year.6 - 9 years: This group of batteries is usually used when an improved life is required.

This represents a 7.5 years design life with a production tolerance of 1.5 years.10 - 12 years: This group of batteries is used when in applications where longest life and highest safety level are

required. This represents a 11 years design life with a production tolerance of 1 year.

A battery failure within the specified design life of the battery usually results in a complete loss of the batteryfunction (broken cell, defect connection, ) and will be detected and reported by the periodical battery tests whichare included in the UB10.242 DC-UPS control unit.

If the operational parameters differ from those which are specified for the design life, an earlier change of thebattery might be necessary. The real life is called service life and is defined as the point at which the cells actualcapacity has reached 80% of its nominal capacity. At the end of the service life the capacity degrades much faster, sothat a further use of the battery is not recommended.

Temperature effect:

The temperature has the most impact in the service life. The hotter the temperature, the earlier the wear-out phaseof the battery begins. The wear-out results in a degradation of battery capacity. See Fig. 28-1for details.

Effect of discharging cycles

The number as well as the depth of discharging cycles is limited. A replacement of the battery might be necessaryearlier than the calculated service life if the battery exceeds the numbers and values of Fig. 28-2.

Other effects which shortens the service life

Overcharging and deep discharging shortens the service life and should be avoided. Thanks to the single

battery concept of the UB10.242, the end-of-charge-voltage can be set very precisely to the required valuean thereby avoiding unnecessary aging effects.

Charge retention is important to get the longest battery life. Stored batteries which are not fully charged

age faster then charged batteries. Batteries which are not in use should be recharged at least once a year. Excessive float charge ripple across the battery has an effect of reducing life and performance. The UB10.242

does not produce such a ripple voltage. This effect can be ignored when the battery is charged with theUB10.242.

Guidelines for a long battery service life:

Place the battery in a cool location: E.g. near the bottom of the control cabinet.

Do not place the battery near heat generating devices.

Do not store discharged batteries.

Do not discharge the battery more than necessary. Set buffer time limiter to the required buffer time.

When choosing the battery capacity, always try to get the next higher capacity than required. The depth of

discharge reduces the service life of the battery and limits the number of cycles. See Fig. 28-2.




20/21


Example for calculating the service life and the required replacement cycle:Parameters for the example:

A 26Ah battery with a design life of 10-12 years is used

The average ambient temperature is 30C

One buffer event consumes approx. 25% of the achievable buffer time.

One buffer event every two days

Calculation:

Ambient temperature influence:According to Fig. 28-1curve C, a 5years service life can be expected for an ambient temperature of 30C.

Number of discharging cycles: 5 years * 182 cycles = 910cycles in 5 years.

According to Fig. 28-2, curve C has to be used (only 25% of battery capacity is required). 910 cycles have only anegligible influence in a battery degradation and can be ignored.

Result:The battery shall be replaced after 5 years.Please note that the battery degrading begins from the production date (check date code on the battery) which mayshorten the replacement intervals.

Fig. 28-1 Service life versus ambienttemperatures, typ *)

Fig. 28-2 Cell capacity degradation vs. dischargingcycles *)

20C

10

30C 35C 40C 45C

8

6

4

2

Ambient Temperature

25C

1

3

5

7

9

Service Life in Years

Design Lifeof BatteryA: 3-5 Years

B: 6-9 YearsC: 10-12 Years

A

B

C

0

120%

100%

40%

20%

Number of Discharging Cycles

200

60%

80%

Cell Capacity

Depth ofdischargeA: 100%B: 50%C: 30%

400 600 800 1000 1200

A

B

C

*) datasheet figures from battery manufacturer

28.2. PARALLEL AND SERIAL USE

Do not use the DC-UPS in parallel to increase the output power. However, two units of the DC-UPS can be paralleledfor 1+1 redundancy to gain higher system reliability.

Do not use batteries in parallel, since the battery quality test might create an error message.

Do not connect two or more units in series for higher output voltages.

Do not connect two or more units in a row to get longer hold-up times.




21/21



28.3. USING THE INHIBIT INPUT

The inhibit input disables buffering. In normal mode, a static signal is required. In buffer mode, a pulse with aminimum length of 250ms is required to stop buffering. The inhibit is stored and can be reset by cycling the inputvoltage.

As long as the inhibit signal is active in normal mode, an internal relay contact will be opened and the battery willnot longer be charged.

For service purposes, the inhibit input can also be used to connect a service switch. Therefore, the inhibit signal canbe supplied from the output of the DC-UPS.

Fig. 28-3 Wiring example for inhibit input

24VPowerSupply

+ -

DC-UPSUB10

24V

IN

24V

OUT12V

BAT

+- +- +-

Signal PortInhibit

+ -

12VBatteryModule

+-

BufferedLoad

+ -

ServiceSwitch

28.4.

TROUBLESHOOTINGThe LEDs on the front of the unit and relay contacts indicate about the actual or elapsed status of the DC-UPS. Pleasesee also chapter 15.

The following guidelines provide instructions for fixing the most common failures and problems. Always start withthe most likely and easiest-to-check condition. Some of the suggestions may require special safety precautions. Seenotes in section 26first.

Check wiring LED is on Check correct wiring between the battery and the DC-UPSCheck battery fuse. Is the battery fuse inserted or blown?Check battery voltage (must be typically between 7.4V and 15.1V)Check input voltage (must be typically between 22.8V and 30V)Check battery polarity

DC-UPS did not buffer Inhibit input was setBattery did not have enough time to be charged and is still below the deep dischargeprotection limit.

DC-UPS stopped buffering Deep discharge protection stopped bufferinguse a larger battery, or allowsufficient time for charging the batteryOutput was overloaded or short circuitreduce load

Output has shut down Cycle the input power to reset the DC-UPSLet DC-UPS cool down, over temperature protection might have triggered.

DC-UPS constantly switches between normal mode and buffer modeThe supplying source on the input is too small and can not deliver sufficient currentUse a larger power supply or reduce the output load

21/21

Puls Ups Supply 10a

Documents

Transcript of Puls Ups Supply 10a